[1] European Community

[2] End of Chaining (SNA)

[3] Exchange Carrier {Telefonie}

[4] Echo Canceller

[5] Electronic Calculator(s)

[6] Engineering Council (->"IEEE Standard Dictionary")

[7] Engine Control (->"NASA Acronym List")

[8] Engine Cutoff (->"NASA Acronym List")

[9] ISO3166 2LA (= Ländercode bzw. TopLevelDomain) für Ecuador

[10] Elliptic Curve.